js操纵dom生成下拉列表框的方法

代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>利用dom生成下拉列表框</title> 

</head> 

<body onload="setFun()"> 
<form> 
<select name="area" id="area"> 
<option value="0">没有地区</option> 
</select> 
</form> 
<script language="javascript"> 
function setFun(){ 
var id = new Array(1,2,3); 
var value = new Array("贵州","重庆","四川"); 
var select = document.getElementById("area"); 
select.length = 1;//设置只能选择一个 
select.options[0].selected = true;//设置默认选中第一个 
for(var x = 0;x<id.length;x++){ 
var option = document.createElement("option"); 
option.setAttribute("value",id[x]);//设置option属性值 
option.appendChild(document.createTextNode(value[x])); 
select.appendChild(option);//向select增加option 
} 
} 
</script> 
</body> 
</html>

相关推荐